{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Spring 2011 Homework 9 - Probability and Statistics for...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Probability and Statistics for Engineering Homework 9 Spring 2011 (due Tuesday, April 19) Donald is diabetic, and he knows that an important aspect of managing this disease is monitoring his fasting blood glucose level (the amount of glucose in his blood measured before eating in the morning). In the past, his fasting blood glucose level has been normally distributed with a mean of . 5 œ "#! œ "& and a standard deviation of . Donald feels confident that the level is still normally distributed, but he is concerned that the mean may have increased, and he also suspects that the standard devation may have decreased. In order to answer these questions, he randomly selects 8 œ "# days over a period of time and measures his fasting blood glucose level for that day. Here are the results (in milligrams per deciliter). ""! "## "$' "#& ""' ""* "$( "#$ "$) "%% "$' "## (1) Find the values of and . Round each to four decimal places. B = (2) Perform a hypothesis test to see if the mean of Donald's fasting blood glucose level has
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern